package com.zhy.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @Author zhy
 * @Description 服务提供者业务类
 * @ClassName PaymentService
 * @Date 2020/12/8 14:55
 **/
@Service
public class PaymentService {

    public String paymentInfo_Ok(Integer id){
        return "线程池+"+Thread.currentThread().getName()+"/ paymentInfo_ok,id"+id+"😂";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value="5000")
    })
    public String paymentInfo_TimeOut(Integer id){
        int i = 10/0;
//        try {
//
//            TimeUnit.SECONDS.sleep(3);
//        } catch (InterruptedException e) {
//            e.printStackTrace();
//        }
        return "线程池+"+Thread.currentThread().getName()+"/ paymentInfo_timeout,id"+id+"😂"+"耗时5秒钟";
    }
    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池+"+Thread.currentThread().getName()+"系统忙    /(ㄒoㄒ)/~~";
    }

    //====服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            //是否开启短路器
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),
            //请求次数
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),
            //时间窗口
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),
            //失败率达到多少后跳闸
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),
    })

    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
        if(id<0){
            throw new RuntimeException("**********id 不能为负数");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"\t"+"调用成功，流水号："+serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id")Integer id){
        return "id 不能负数，请稍后再试， /(ㄒoㄒ)/~~ id :"+id;
    }



}
